Spoilers~
Yeah I'm just referring to the vision he has of Dave's death and the extra detail he gives on day... 16 I think.
Dom so far hasn't made an appearance in the "main" timelines. Just briefly in C/D, and if you got E then you've seen him already but I don't know if he's outright named in every variation of those endings.
And yeah please do, I don't see Roswell get as much love as some of the others but I really like him and his route.